2007 Dodge Ram V8 5.7 Hemi throttle problems

[hermn]

I have a 2000 Dodge Ram V8 5.7 Hemi throttle will not open ,oil gauge needed is bouncing back and forth .Ialready changed 2 sensors the oil pressure sensor and another down by oil pan still getting codes here are some pictures of the codes I'm getting anything will help thanks

 

[u2slow]

Probably won't get many answers...
This is the 81-93 Dodge truck section.